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Patent US2906847A successfully refreshed from Google Patents.
US2906847A
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Power driven hand heat sealing unit
Assignee: Doughboy Industries Inc
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Filing: 1951-10-29
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Granted: 1959-09-29
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Expires: 1971-10-29
Abstract
No abstract record available.
Inventors
- 👤 John J Grevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:30
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/84; B29C66/861; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/836; B29C66/8362; B29C66/90; B29C66/91; B29C66/912; B29C66/9121; B29C66/91231; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91431; B29C66/9161; B29C66/91641; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741; Y10T156/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1089667A
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US1851039A
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US2392695A
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US2376253A
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US2469972A
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US2566799A
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US2542901A
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US2597634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |